Avery Dennison ALX 720 - Manual (Page 99)

Operators Manual
ALX 720
4/09 Page 99 Connections and signals
10. Connections and signals
This machine has a number of inputs to connect sensor’s and a control. Outputs are available
for applicators, a printer and other purposes.
10.1 Output signals
This machine has eight outputs, which switch the output from open circuit to + 24V. The
maximum current must not exceed 500 mA. The four signals for error messages, machine
ready, low material and warnings are available for other machines in the process or additional
alarm signals. For connecting an applicator three signals are available and one additional for
the printer.
The output signals are available at terminal connector CN33 on the main board. The wiring of
the terminal is shown otherwise.
10.1.1 Error and warning output
The outputs for errors and warnings are available on the terminal CN33 and optional on the I/O
plug. The signals are switched active (+24V) if an error or warning occurs. When the error or
warning is erased, the signal becomes passive again.
10.1.2 Printer output
This machine can be connected to a printer. To use the printer the PDT parameter should be
adjusted.
A new label cannot be dispensed until the printer dwell time set in PDT is over.
10.1.3 OD-Control output
This output is switched active (+24V) if the OD-Control input is switched active during
dispensing.
10.1.4 Ready output
This output shows when the machine is ready for labelling. This output is switched inactive if
there is:
• an error message appears in the display
• the mains supply voltage has fallen below specification
• the machine requires initialisation
• in OFF condition.